In 2268, James T. Kirk visited the planet to update its progress. Okmyx offered to cut Kirk in on the action, if Kirk helped him take over the planet by providing him with "heaters". When Kirk refused the request, he and Spock were taken hostage and Okmyx threatened to kill them and have their dead bodies sent back up to the ship if they don't get him the "heaters" within eight hours. Kirk, however, was able to escape.

Kirk was able to intervene and end the turf war between the bosses, when he had the USS Enterprise fire phasers on stun in the surrounding area to demonstrate the power of the "Feds." The Mobsters were convinced and agreed to Federation control with Okmyx as the planetary leader and Jojo Krako, his former rival, as his Lieutenant. (TOS: "A Piece of the Action")

The "Okmyx" spelling is also found in the 'Final Draft' of the shooting script, dated 30 October1967 – with revised pages dated 31 October1967. Although pronunciation is provided for other characters in this episode, no such guidance is provided for "Okmyx." The end credits simply credit the character as "Bela."